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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.43  No.8 (2002)  >  pp.2006-2016

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Developments of Aluminum- and Magnesium-Based Nanophase High-Strength Alloys by Use of Melt Quenching-Induced Metastable Phase

Akihisa Inoue1), Hisamichi Kimura1) and Kenji Amiya1)
1) Institute for Materials Research, Tohoku University

The stabilization of supercooled metallic liquid occurs for a number of alloys where the constituent elements have the following three rules, i.e., multi-component of more than three elements, significant mismatches of atomic size above 12% among the main three elements, and negative heats of mixing among their main elements. The use of the stabilized supercooled liquid has enabled us to synthesize a number of novel advanced metallic materials. In this review, we present the alloy components, fabrication processings, structures, mechanical properties and applications of high-strength Al- and Mg-based alloys with glassy, nanocrystalline or nanoquasicrystalline phase which were developed on the basis of the concept of the utilization of stabilized supercooled liquid for the last one decade.

aluminum base alloy, magnesium base alloy, nanocrystalline phase, nanoquasicrystalline phase, new long-periodic hexagonal phase, rapid solidification, powder metallurgy, mechanical property

Received: February 21, 2002
Accepted: June 04, 2002 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals



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